Arithmetic progression Calculator

Calculates the n-th term and sum of the arithmetic progression with the common difference.

initial term a
common difference d
number of terms n
    1. n=1,2,3...

the n-th term an
    1.  
sum Sn
    1.  
    Arithmetic progression
    [1-5] /5Disp-Num
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    [1]  2019/03/30 06:36   Male / Under 20 years old / High-school/ University/ Grad student / Useful /
    Purpose of use
    need help
    Comment/Request
    help me solve this .. The first and the last term of an a.p are 2 and 125 respectively. If the 5th term is 14 find the number of term in the a.p
    [2]  2019/01/30 01:47   Female / Under 20 years old / High-school/ University/ Grad student / Very /
    Purpose of use
    study
    [3]  2018/02/24 05:57   Male / 20 years old level / High-school/ University/ Grad student / Very /
    Purpose of use
    I want to write wassce 2018 sept
    [4]  2017/06/24 04:32   - / - / - / Useful /
    Comment/Request
    Pls solve this for me: the first term of an arithmetic progression (AP) is -8. If the ratio of the 7th term is 5: 8, find the common difference of the AP
    [5]  2012/10/29 21:27   Male / 20 years old level / High-school/ University/ Grad student / Very /
    Purpose of use
    don't know how to do it, plz help me...
    Comment/Request
    2+5+6+7+10+11+....nth find summation of nth term

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